Sound Waves get your wash clean (Jun, 1951)
Yesterday on Boing Boing Gadgets one of their excellent new writers, John Brownlee, posted this ultrasonic dish cleaner. Well here’s my counterpoint: a not-so-ultrasonic laundry cleaner, AKA The Hooter! It only takes 5 minutes of unbearable loudness to clean your little tub of clothes.
Sound Waves get your wash clean, claims Robert Bosch of Stuttgart, Germany. This seven-pound machine works on principle of auto horn. Hooter must sound for five minutes. Cost is $32.